<template>
  <div class="list-contain">
    <!-- 头部的面包屑导航栏 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 一个卡片区域 -->
    <el-card class="box-card">
      <!-- 头部区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable>
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="16">
          <el-button type="primary" @click="$router.push('/goods/add')">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border style="width: 100%">
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元）" width="95px"> </el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70px"> </el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="160px">
          <template slot-scope="scope">
            {{ scope.row.add_time | formatDate }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="small"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="small" @click="deleteGoodById(scope.row)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination background @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total"> </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  created() {
    this.getGoodsList()
  },
  data() {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      goodsList: [],
      total: 0
    }
  },
  methods: {
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败!')
      this.goodsList = res.data.goods
      this.total = res.data.total
      console.log(this.goodsList)
      console.log(this.total)
    },
    /* 分页组件相关函数 */
    handleSizeChange(newPageSize) {
      this.queryInfo.pagesize = newPageSize
      this.getGoodsList()
    },
    handleCurrentChange(newPageNum) {
      this.queryInfo.pagenum = newPageNum
      this.getGoodsList()
    },
    /* 删除商品按钮响应函数 */
    deleteGoodById(row) {
      this.$confirm('此操作将永久删除该参数, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(async confirm => {
          const { data: res } = await this.$http.delete(`goods/${row.goods_id}`)
          if (res.meta.status !== 200) return this.$message.error('删除失败!')
          this.getGoodsList()
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
        })
        .catch(err => err)
    }
  }
}
</script>

.<style lang="less" scoped></style>
